Exodus 29:16

And thou shalt slay the ram As he was ordered to slay the bullock, acting in this as a priest, as in that:

and thou shall take his blood, and sprinkle it round about upon thealtar; the blood being received into a basin, it was not to be put upon the altar with the finger, as the blood of the bullock, but was to be sprinkled probably with a bunch of hyssop, round about upon the altar, on the top and sides: as the deity of Christ is the altar which sanctifies every gift, this may signify that his blood has its virtue and efficacy from that, to make atonement for the sins of men, and to cleanse them from them.